.slider {
    position: relative;
    display: flex;
    align-items: center;
    min-height: 32px;
    .tooltip {
      position: absolute;
      bottom: 100%;
      display: none;
      justify-content: center;
      align-items: center;
      width: 30px;
      height: 30px;
      font-size: 12px;
      color: #fff;
      background: rgba(0, 0, 0, 0.7);
    }
    .slider__progress {
      position: absolute;
      top: 0;
      bottom: 0;
      margin: auto auto;
      border-radius: 3px;
      height: 6px;
      background: #00c58e;
      pointer-events: none;
      z-index: 1;
    }
    @mixin thumb-common-style() {
      position: relative;
      z-index: 3;
      border: 2px solid #00c58e;
      background: #fff;
      cursor: grab;
      transition: all 0.3s;
    }
    .slider__inner {
      position: relative;
      margin: 0 0;
      padding: 0 0;
      width: 100%;
      height: 100%;
      overflow: visible;
      //reset
      -webkit-appearance: none;
      &:active {
        cursor: grabbing;
        & + .tooltip {
          display: flex;
        }
      }
      &::-webkit-slider-thumb {
        -webkit-appearance: none;
      }
      &:focus {
        outline: none;
      }
      &::-ms-track {
        width: 100%;
        cursor: pointer;
        background: transparent;
        /* Hides the slider so custom styles can be added */
        border-color: transparent;
        color: transparent;
      }
      // init thumb
      @mixin circle-slider-thumb() {
        width: 18px;
        height: 18px;
        border-radius: 50%;
        &:active {
          cursor: grabbing;
        }
      }
      &::-webkit-slider-thumb {
        margin-top: -6px;
        @include circle-slider-thumb();
        @include thumb-common-style();
      }
      &.is-disabled {
        &::-webkit-slider-thumb {
          border: 2px solid #c4c4c4;
          cursor: not-allowed;
        }
      }
      &::-moz-range-thumb {
        @include circle-slider-thumb();
        @include thumb-common-style();
        transform: translateZ(1px);
      }
      &.is-disabled {
        &::-moz-range-thumb {
          border: 2px solid #c4c4c4;
        }
      }
      &::-ms-thumb {
        @include circle-slider-thumb();
        @include thumb-common-style();
      }
      &.is-disabled {
        &::-ms-thumb {
          border: 2px solid #c4c4c4;
        }
      }
      // init track & abstract common-track   
      @mixin common-track {
        width: 100%;
        height: 6px;
        background: #e4e7ed;
        border-radius: 3px;
        cursor: pointer;
      }
      &::-webkit-slider-runnable-track {
        @include common-track();
      }
      &::-moz-range-track {
        @include common-track();
      }
      &::-ms-track {
        width: 100%;
        height: 6px;
        cursor: pointer;
        background: transparent;
        border-color: transparent;
        border-width: 16px 0;
        color: transparent;
      }
      &::-ms-fill-lower {
        background: #409eff;
        border-radius: 3px;
      }
      &::-ms-fill-upper {
        background: #c4c4c4;
        border-radius: 3px;
      }
      &.is-disabled {
        &::-webkit-slider-runnable-track {
          cursor: not-allowed;
        }
        &::-moz-range-track {
          cursor: not-allowed;
        }
        &::-ms-track {
          cursor: not-allowed;
        }
      }
    }
    &.is-disabled {
      .slider__inner {
        cursor: not-allowed;
      }
      &::-webkit-slider-thumb {
        border: 2px solid #c4c4c4;
        cursor: not-allowed;
      }
    }
  }